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Class 12MathematicsTrigonometric FunctionsTrigonometric functions and their propertiesHard
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What is \(\sin\left(\frac{\pi}{2}+x\right)\) equal to?

Answer and explanation

Correct answer: (\cos x)

For \(\frac{\pi}{2}+x\), sine changes to cosine and remains positive in the second quadrant. Hence the value is (\cos x).

Related tags

Trigonometric-FunctionsAngle-TransformationSineTrigonometric Functions And Their PropertiesTrigonometric FunctionsMathematicsClass 12 Mcq
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10 more MCQs
  1. 1If \(\theta=0^\circ\), what is the value of \(\sin \theta\)?
  2. 2If \(\theta=0^\circ\), what is the value of \(\cos \theta\)?
  3. 3If \(\theta=45^\circ\), what is the value of \(\tan \theta\)?
  4. 4Which trigonometric function is the reciprocal of \(\sin \theta\)?
  5. 5Which trigonometric function is the reciprocal of (\cos \theta)?
  6. 6Which trigonometric function is the reciprocal of \(\tan\theta\)?
  7. 7What is (\tan \theta) equal to?
  8. 8What is (\cot \theta) equal to?
  9. 9What is the value of the basic identity (\sin^2 \theta+\cos^2 \theta)?
  10. 10What is the value of (\sec^2 \theta-\tan^2 \theta)?
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